.virtual-joystick {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 100;
}

.joystick-base {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background-color: rgba(0, 0, 0, 0.3);
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.joystick-thumb {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.7);
  position: absolute;
  transform: translate(-50%, -50%);
  touch-action: none;
  transition: transform 0.1s ease;
}